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Updated: Jun 17, 2026

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
Published on: February 14, 2021
A molecular sensor for the baroreceptor reflex?
1Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. mccleskeye@hhmi.org
Scientists identified a key protein, ASIC2, crucial for the rapid neural control of blood pressure in mice. This ion channel may function as the long-sought molecular pressure sensor regulating this vital reflex.
Area of Science:
- Neuroscience
- Physiology
- Molecular Biology
Background:
- Rapid neural control of blood pressure is essential for maintaining homeostasis.
- The molecular basis of the pressure sensor triggering this reflex remains unidentified.
Purpose of the Study:
- To identify the molecular pressure sensor responsible for the rapid neural control of blood pressure.
- To investigate the role of ASIC2 in the baroreflex pathway.
Main Methods:
- Utilized mouse models to study the baroreflex.
- Investigated the function of ASIC2, an acid-sensing ion channel, in neural control of blood pressure.
Main Results:
- ASIC2 was found to be critical for the rapid neural control of blood pressure in mice.
- Evidence suggests ASIC2 may act as the elusive molecular pressure sensor.
Conclusions:
- ASIC2 plays a vital role in the baroreflex.
- ASIC2 is a strong candidate for the molecular pressure sensor involved in blood pressure regulation.
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